Solved HP EliteBook 840 G3 turns on and off repeatedly! (VIDEO)

March 22, 2017 at 05:44:42
Specs: Microsoft Windows 10
Hello everyone

My computer keeps turning on and off repeatedly, and yes, I have tried performing a "Hard Reset", but it didn't work.

You can watch the problem here: https://youtu.be/M-EoBP89HEI

Thanks in advance


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✔ Best Answer
March 23, 2017 at 21:18:14
From reading your user guide:

http://h20565.www2.hp.com/hpsc/doc/...

Maybe your battery has gone bad. Directly from your manual:

When AC power is disconnected (battery not charging):

● Blinking amber: The battery has reached a low
battery level. When the battery has reached a critical
battery level, the battery light begins blinking
rapidly.


You can try to remove the battery then plug in the AC adapter and see if it still persists. Stated earlier, the manufacturers warranty should cover it.


I don't need to be right, but I am never wrong.

message edited by stiefler182



#1
March 22, 2017 at 11:22:40
Remove the battery and power plug. Hold down the on button for about 30 seconds. The put the battery back in and insert the power plug and see if it boots.

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#2
March 23, 2017 at 06:01:52
Like I said before: I have tried performing a "Hard Reset", but it didn't work.

Isn't there a solution to this problem?


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#3
March 23, 2017 at 06:32:05
Hi Jakob, how old is the Laptop?

I would suspect it is overheating and/or the fan is not working.

Dust can build up into a large wedge of fluff between the cooling fan and heatsink matrix.

Often removing this wedge completely, requires the fan to be taken out.

If this is necessary, avoid disturbing the processor, as otherwise Thermal Paste will be required, which must be correctly applied.

Please advise back on progress.

Good Luck - Keep us posted.


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#4
March 23, 2017 at 08:39:50
Hello Mike

My Laptop is about 7 months old.

I don't think it's overheating, that is causing the problem, because this has been going on for like 3 days now, and I only use this Laptop at school (to take notes). I think, it would take a lot more than that, to overheat my Laptop. (The price of this laptop is about 1500 dollars, btw.)


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#5
March 23, 2017 at 09:03:43
I didn't look up what all those lights indicate (lots of lights!), but it
appears that the laptop is trying to restart about every 2-5 seconds.
Is that right? I very much doubt that overheating could cause a
cycle time that fast. It must be an electrical fault, but could be way
down at the level of a single diode or transistor in an IC chip. Or it
could be the power supply. That is probably easier and cheaper to
diagnose and repair, so that's what I'd look at.

-- Jeff, in Minneapolis


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#6
March 23, 2017 at 11:26:17
Hi Jakob,

surely at 7 months old, it is covered by a warranty.
.
If so, perhaps the cover should not have been removed.

Good Luck - Keep us posted.


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#7
March 23, 2017 at 20:44:42
Yes, take it in under warranty and let them solve it for you.

You have to be a little bit crazy to keep you from going insane.


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#8
March 23, 2017 at 21:18:14
✔ Best Answer
From reading your user guide:

http://h20565.www2.hp.com/hpsc/doc/...

Maybe your battery has gone bad. Directly from your manual:

When AC power is disconnected (battery not charging):

● Blinking amber: The battery has reached a low
battery level. When the battery has reached a critical
battery level, the battery light begins blinking
rapidly.


You can try to remove the battery then plug in the AC adapter and see if it still persists. Stated earlier, the manufacturers warranty should cover it.


I don't need to be right, but I am never wrong.

message edited by stiefler182


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